polars_core::chunked_array::ops

Trait ChunkApplyKernel

Source 
pub trait ChunkApplyKernel<A: Array> {
    // Required methods
    fn apply_kernel(&self, f: &dyn Fn(&A) -> ArrayRef) -> Self;
    fn apply_kernel_cast<S>(
        &self,
        f: &dyn Fn(&A) -> ArrayRef,
    ) -> ChunkedArray<S>
       where S: PolarsDataType;
}
Expand description

Apply kernels on the arrow array chunks in a ChunkedArray.

Required Methods§

Source

fn apply_kernel(&self, f: &dyn Fn(&A) -> ArrayRef) -> Self

Apply kernel and return result as a new ChunkedArray.

Source

fn apply_kernel_cast<S>(&self, f: &dyn Fn(&A) -> ArrayRef) -> ChunkedArray<S>
where S: PolarsDataType,

Apply a kernel that outputs an array of different type.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§